• The reported measure would cover new Chinese optical-transceiver models used in data-centre fibre links
  • No draft rule, product list or effective date has been published, and the proposal could still be revised or abandoned

The fact

The US Federal Communications Commission is drafting a measure that would bar imports of new Chinese optical-transceiver models, four people familiar with the discussions told Reuters. Officials hope to publish it this year, although the agency could still revise or abandon the proposal. Optical transceivers convert electrical signals into light so data can travel over fibre connections inside data centres.

No draft text, list of covered products or effective date has been published. The White House and FCC did not comment. Reuters reported that Chinese suppliers account for most of the global optical-transceiver market and identified Zhongji Innolight as one company that could be affected. The report did not identify a final list of companies or models.

The assessment

Data-centre network teams choose transceivers to work with specific switches, fibre types, speeds and distances. If the FCC excludes certain models, operators may have to verify where each product comes from before approving it. A late substitution could require fresh compatibility testing and a new supplier.

The practical effect will depend on the scope and timing of any rule. A restriction limited to new models may leave installed equipment and existing inventory unaffected. Broader coverage, or little time to adjust, could affect products already specified or ordered. The FCC has not said how it would handle either case.

For BTW readers, US network teams may need to qualify alternative transceivers before fixing switch platforms and fibre specifications. That would bring supplier screening into an earlier stage of network design, although the effect on current projects cannot be assessed until the FCC publishes the rule.

What to watch

The FCC’s first proposal should explain which products and manufacturers are covered, when the rule would start and whether existing orders can still be used. The transition period will determine whether operators can keep current network designs or must approve replacement equipment. Suppliers may also clarify which products are already planned for US data-centre projects.